☆ 4.5 Article

Density induced vacuum instability

SCIPOST PHYSICS (2023)

Related references

Note: Only part of the references are listed.

Article Physics, Particles & Fields

Runaway relaxion from finite density

Reuven Balkin et al.

Summary: This study investigates the effects of finite density on the stability of metastable vacua in relaxion models. By analyzing nucleation seeds from stars and rotating neutron stars, we derive the conditions for the formation and runaway of relaxion bubbles with lower energy minima than in vacuum. The resulting late-time phase transition in the universe provides new constraints on the parameter space of relaxion models.

JOURNAL OF HIGH ENERGY PHYSICS (2022)

Add to Collection

Article Physics, Particles & Fields

Black hole induced false vacuum decay: the role of greybody factors

Andrey Shkerin et al.

Summary: We study false vacuum decay catalyzed by black holes, using a toy two-dimensional model of a scalar field in the background of a dilaton black hole. We find that the decay probability of the Unruh vacuum remains exponentially suppressed at all black hole temperatures, in contrast to the Hartle-Hawking vacuum.

JOURNAL OF HIGH ENERGY PHYSICS (2022)

Add to Collection

Article Astronomy & Astrophysics

Mirror neutron stars

Mauricio Hippert et al.

Summary: The researchers used realistic equations of state and first-principle quantum chromodynamic calculations for the first time to find the structure of mirror neutron stars, enabling them to predict gravitational wave signals and demonstrate the ability to explore dark sectors connected to the hierarchy problem.

PHYSICAL REVIEW D (2022)

Add to Collection

Article Physics, Particles & Fields

Black hole induced false vacuum decay from first principles

Andrey Shkerin et al.

Summary: This study presents a method for calculating the rate of false vacuum decay induced by a black hole by considering complex tunneling solutions and the structure of different quantum vacua. Analyzing a two-dimensional scalar field model, it is found that the decay rates from Unruh vacuum are exponentially smaller than those from Hartle-Hawking state, but both become unsuppressed at high black hole temperatures. The disappearance of suppression at high temperatures for Unruh vacuum decay is attributed to the two-dimensional model and may be different in the realistic case of black holes in four dimensions.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

Add to Collection

Article Astronomy & Astrophysics

Weak scale as a trigger

Nima Arkani-Hamed et al.

Summary: The article examines the impact of the Higgs mass parameter on the expectation value of local operators in the Standard Model, exploring scenarios where the Higgs mass parameters can act as triggers for certain local operators. It introduces a type-0 two Higgs doublet model and discusses a potential explanation for the origin of the weak scale involving extremely light, weakly interacting scalars. This weak scale trigger links the tuning of the Higgs mass to that of the cosmological constant, while coherent oscillations of the 0i can constitute dark matter.

PHYSICAL REVIEW D (2021)

Add to Collection

Article Astronomy & Astrophysics

Screening the Higgs portal

Philippe Brax et al.

Summary: This study investigates how the mixing of a light scalar with the Higgs field can lead to the screening of the fifth force around macroscopic objects, emphasizing the importance of considering both scalar fields as dynamical. It is shown that the naive integrating-out procedure fails when the mass matrix of the Higgs-scalars system has a nearly vanishing mass eigenvalue, and conditions under which the resulting fifth force mediated by the Higgs portal can be screened are discussed. Implications of these results for nearly massless relaxion models are also examined in the context of this research.

PHYSICAL REVIEW D (2021)

Add to Collection

Article Astronomy & Astrophysics

Oscillons and dark matter

Jan Olle et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2020)

Add to Collection

Article Physics, Particles & Fields

Signatures of mirror stars

David Curtin et al.

JOURNAL OF HIGH ENERGY PHYSICS (2020)

Add to Collection

Article Astronomy & Astrophysics

How to discover Mirror Stars

David Curtin et al.

PHYSICS LETTERS B (2020)

Add to Collection

Article Physics, Particles & Fields

The QCD axion at finite density

Reuven Balkin et al.

JOURNAL OF HIGH ENERGY PHYSICS (2020)

Add to Collection

Article Astronomy & Astrophysics

Relaxing the Higgs mass and its vacuum energy by living at the top of the potential

Alessandro Strumia et al.

PHYSICAL REVIEW D (2020)

Add to Collection

Article Astronomy & Astrophysics

Hubble constant hunter's guide

L. Knox et al.

PHYSICAL REVIEW D (2020)

Add to Collection

Article Astronomy & Astrophysics

Compact objects as the catalysts for vacuum decays

Naritaka Oshita et al.

PHYSICS LETTERS B (2019)

Add to Collection

Article Physics, Particles & Fields

Searches for other vacua. Part I. Bubbles in our universe

Anson Hook et al.

JOURNAL OF HIGH ENERGY PHYSICS (2019)

Add to Collection

Editorial Material Astronomy & Astrophysics

Tensions between the early and late Universe

Licia Verde et al.

NATURE ASTRONOMY (2019)

Add to Collection

Article Astronomy & Astrophysics

Asymmetric dark stars and neutron star stability

Moira I. Gresham et al.

PHYSICAL REVIEW D (2019)

Add to Collection

Article Physics, Particles & Fields

Probing axions with neutron star inspirals and other stellar processes

Anson Hook et al.

JOURNAL OF HIGH ENERGY PHYSICS (2018)

Add to Collection

Article Astronomy & Astrophysics

Multiple-axion framework

Thomas C. Bachlechner et al.

PHYSICAL REVIEW D (2018)

Add to Collection

Article Physics, Particles & Fields

A small weak scale from a small cosmological constant

Asimina Arvanitaki et al.

JOURNAL OF HIGH ENERGY PHYSICS (2017)

Add to Collection

Article Astronomy & Astrophysics

False vacuum decay catalyzed by black holes

Kyohei Mukaida et al.

PHYSICAL REVIEW D (2017)

Add to Collection

Article Astronomy & Astrophysics

Dynamics of the cosmological relaxation after reheating

Kiwoon Choi et al.

PHYSICAL REVIEW D (2017)

Add to Collection

Article Astronomy & Astrophysics

Dark energy at early times, the Hubble parameter, and the string axiverse

Tanvi Karwal et al.

PHYSICAL REVIEW D (2016)

Add to Collection

Article Astronomy & Astrophysics

Asymmetric dark matter stars

Chris Kouvaris et al.

PHYSICAL REVIEW D (2015)

Add to Collection

Article Physics, Multidisciplinary

Cosmological Relaxation of the Electroweak Scale

Peter W. Graham et al.

PHYSICAL REVIEW LETTERS (2015)

Add to Collection

Article Physics, Particles & Fields

Semiclassical approach to heterogeeous vacuum decay

Benjamin Grinstein et al.

JOURNAL OF HIGH ENERGY PHYSICS (2015)

Add to Collection

Article Astronomy & Astrophysics

Cosmic Star-Formation History

Piero Madau et al.

Annual Review of Astronomy and Astrophysics (2014)

Add to Collection

Article Physics, Particles & Fields

Black holes as bubble nucleation sites

Ruth Gregory et al.

JOURNAL OF HIGH ENERGY PHYSICS (2014)

Add to Collection

Article Astronomy & Astrophysics

Chameleon field theories

Justin Khoury

CLASSICAL AND QUANTUM GRAVITY (2013)

Add to Collection

Article Physics, Multidisciplinary

Detecting Domain Walls of Axionlike Models Using Terrestrial Experiments

M. Pospelov et al.

PHYSICAL REVIEW LETTERS (2013)

Add to Collection

Article Astronomy & Astrophysics

Effects of mirror dark matter on neutron stars

Fredrik Sandin et al.

ASTROPARTICLE PHYSICS (2009)

Add to Collection

Article Physics, Multidisciplinary

Dark matter and the first stars: A new phase of stellar evolution

Douglas Spolyar et al.

PHYSICAL REVIEW LETTERS (2008)

Add to Collection

Article Astronomy & Astrophysics

Attractor explosions and catalyzed vacuum decay

Daniel Green et al.

PHYSICAL REVIEW D (2006)

Add to Collection

Article Astronomy & Astrophysics

Compact stars made of fermionic dark matter

Gaurav Narain et al.

PHYSICAL REVIEW D (2006)

Add to Collection

Review Multidisciplinary Sciences

The physics of neutron stars

JM Lattimer et al.

SCIENCE (2004)

Add to Collection

Article Astronomy & Astrophysics

Solutions to the cosmological constant problems

J Garriga et al.

PHYSICAL REVIEW D (2001)

Add to Collection

Article Physics, Particles & Fields

Quantization of four-form fluxes and dynamical neutralization of the cosmological constant

R Bousso et al.

JOURNAL OF HIGH ENERGY PHYSICS (2000)

Add to Collection

© Peeref 2019-2024. All rights reserved.